Updated NAN to 2.14

[mielvds]

Fixes #41 and makes HDT-Node compatible with Node 12.
Not sure about the backwards compatibility now, to be tested.

[RubenVerborgh]

Thanks! But can we also update .travis.yml to include 11, 12, 13, lts/*, node/*? (cfr. https://github.com/rdfjs/N3.js/blob/7bbfb84e2d650edf896792c76ad7da1e5436fa3c/.travis.yml)

[mielvds]

Thanks! But can we also update .travis.yml to include 11, 12, 13, lts/*, node/*? (cfr. https://github.com/rdfjs/N3.js/blob/7bbfb84e2d650edf896792c76ad7da1e5436fa3c/.travis.yml)

"node/*" or "node"?

[RubenVerborgh]

Both.

[mielvds]

Ok, looks like they removed Set in Node 13.
Before it's:

../lib/HdtDocument.cc:209:21: warning: 'Set' is deprecated: Use maybe version [-Wdeprecated-declarations]
      triplesArray->Set(count++, tripleObject);

[RubenVerborgh]

Deprecation is fine for now; unless NAN already has an alternative.

[mielvds]

They do: https://github.com/nodejs/nan/blob/master/doc/maybe_types.md#nanset I'll see if it's much work

[mielvds]

latest commit enables building for 13 as well

[RubenVerborgh]

Okay the node/* was my bad; will fix. Looks good otherwise.